digital rebound hammer ht 225nb digital concrete test hammer 100 mpa

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Product Overview


Product Description

 digital rebound hammer ht-225nb digital concrete test hammer 100 mpa


Standards and Regulations Applied

- ISO/DIS 8045 International

- EN 12 504-2 Europe

- ENV 206 Europe

- BS 1881, part 202 Great Britain

- DIN 1048, part 2 Germany

- ASTM C 805 USA

- NFP 18-417 France

- B 15-225 Belgium

- JGJ/ T 23-2001 China

- JJG 817-1993 China


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Used for testing the compressive strength of ordinary concrete in the range of 10 ~ 70Mpa in structural engineering

Technical advantages 

1.It adopts mobile phone keystroke technology and seven-key design. The product is characterized by better hand feeling, longer life, faster response, easier to operate

2.Large-size and highlighted OLED liquid crystal display screen can display more content information

3.Built-in chip is connected to portable printer and can print out the original records and test results in the field

4.Equipped with high-power loudspeaker, the voice messages on the spot are clearer. In addition, a headset jack is equipped to facilitate the use in a noisy environment

5.The modular design of the electronic warehouse can be quickly assembled with the ordinary mechanical rebound apparatus into a new integrated digital rebound apparatus

6.The rebound value is collected by non-contact grating and photocoupling sensor. There is no wire connection between the pointer block and the circuit board

7.The mechanical concrete test hammer , produced by LANGRY Technology, is characterized by longer service life and more stable rebound value after more than 10 technological innovations

8.The computer online software adopts the latest data processing platform developed by LANGRY Technology, which has the function of automatic importing rebound value and automatic identifying port, integrating rich report formats and various data export formats, and giving users a more perfect experience


Main functions

It has the functions of rebound sampling, automatic recording, automatic storage, automatic calculation, strength result viewing, field printing, background management settings, online upload data and so on. The work efficiency of rebound detection is greatly improved and the labor intensity of testing personnel is reduced.

2_03.pngTechnical parameters

1.Basis for detection data processing: Technical Specification for Inspecting of Concrete Compressive Strength by Rebound Method JGJ/T 23-2011

2.Strength-measuring curve: Unified curve of factory preset national standard and local strength-measuring curve of each province, city and district

3.Memory storage: 240 standard components or more than 76,000 measuring points and related parameter data

4.Display screen: 256*64 (dot matrix), high-light OLED blue-ray display screen

5.Online communication rate: 115.2k bps

6.Battery Power: 3.8v lithium battery, 2300mAh

7.Standard impact energy:2.207 J
8.Elastic tension spring stiffness: 785 ± 30N/m

9.Impact length of bounce hammer: 75±0.3mm
10.Anvil rate setting: 80 ± 2

11.Consistency of sampling indication: ≤±1






LANGRY Electronic Hammer is a high-quality product developed by its own factory. It is of good quality. I hope it can help you in your engineering construction.





Q: Are your company a trading one or a factory?

A: Factory+ trade, professional manufacturer of NDT instruments.


Q: After an order is placed, when to deliver?

A: We can arrange shipment within 3 days. Please be aware that our production lead times depend on specific items and item quantities.


Q: What about the warranty with after-sales services?

A: The testing machine is guaranteed for 12 months, the professional after-sale service team will provide perfect technical support and help guests solve problems encountered while using our product, 24 hours technical support by email or call


Q: What about the product's services and quality?

A: Each instrument must be carried out 100% quality examination and test when shipping and delivery goods product use training, each of our product provides video training to show you how to install operate.


Q: Why your price is higher than others?

A: As we persist on that each factory should put quality at the first place. We spend time and money on developing how to make machines much more automatic, accurate and high quality. We can make sure that our machine could use more than ten years without any problem.



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